PHP PECL extension for JavaScript minification
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README.md

jsmin - PHP extension for JavaScript minification

Build Status

Introduction

This extension adds Douglas Crockford's jsmin functionality to PHP.

http://www.crockford.com/javascript/jsmin.html

Requirements

This extension currently works with PHP 7.0.0+. Use versions < 3.0 for PHP 5.X support.

Installation

Via PECL

You can install this extension by using the pecl command:

pecl install jsmin

Via source

To install via source, clone this repo and then run the following:

$ cd /path/to/source
$ phpize
$ ./configure
$ make install clean

Then, move the built module to your extensions directory.

Via Homebrew (OSX)

For those on OSX, you can use Homebrew to manage PHP versions. Included is the jsmin extension.

Take a look at Homebrew PHP for installation notes.

Thanks to Jon Whitcraft for pushing the definition for jsmin to the project.

Enable extension

You will want to enable the extension in php.ini by adding:

extension="jsmin.so"

Usage

Using jsmin is simple.

Function: jsmin

Use this function to minify JavaScript. It accepts a single string argument.

<?php

$javascript = <<<JS
/**
 * My JavaScript Library
 */

var notes = "jsmin is easy!";
JS;

echo jsmin($javascript);

Example output is the following:

var notes="jsmin is easy!";

You can also retrieve the latest error by passing by reference to the second argument:

jsmin($javascript, $error);

Function: jsmin_last_error

Returns error code of last call to jsmin().

Function: jsmin_last_error_msg

Returns an error message (string) for the last call to jsmin().

Constants

  • JSMIN_ERROR_NONE - No errors.
  • JSMIN_ERROR_UNTERMINATED_STRING - Unterminated string.
  • JSMIN_ERROR_UNTERMINATED_COMMENT - Unterminated comment.
  • JSMIN_ERROR_UNTERMINATED_REGEX - Unterminated regex.

Credits

Discovery Communications developed a similar extension in-house for minifying bundled JavaScript.

I decided to take the most recent source from Douglas Crockford's JSMin and port / manage the extension for PECL.